In their fourth year of marriage, the couple's relationship is good, but sex with her husband has become bland and unappealing. Yui stumbled upon an AV audition page and thought, 'I want to have serious sex again!' She decided to give it a try. As an aesthetician, she loves being touched by others. When she touches men, she gradually becomes aroused. Though she is a serious person, she is also a married woman with a hidden perverted side.
